An Illinois Institute of Technology sophomore who had been missing for eight days was found dead in a fraternity storage closet this weekend. The Cook County medical examiner determined the cause of death of Benjamin Collen as asphyxia due to inhalation of carbon dioxide from a canister. Police are still trying to determine how the student's body could have gone unnoticed for so long in the Alpha Sigma Phi fraternity house, where about 25 people reside.
Police are not investigating foul play because the 19-year-old's death has been ruled accidental.
Collen was a member of the fraternity and had been a resident there at some point but was most recently living at a nearby university housing complex.